CLAS physics database search results Measurement E46M145 N/A 0 cos(theta_HS^pi+) dsigma/dcos(theta_HS^pi+) Data errors dimensionless mcb mcb -0.875 2.287615 0.588959 -0.625 0.912529 0.244379 -0.375 0.459563 0.142599 -0.125 0.385175 0.098379 0.125 0.335513 0.099217 0.375 0.363414 0.106365 0.625 0.626457 0.164356 0.875 0.877538 0.351811